Universal-joint connecting rod



ma 29, 1923. a 5&5?

E.ROSENTHAL UNIVERSAL JOINT CONNECTING HOD 7 Filed April 11, 1922 ELY].

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IN V EN TOR M #2 A TTOR NE 1 Pntented May 2%, i923 entree 3 Li e lifter-iii EDWARD BOSENTHM, F BROOEEiYIQQ-KEW iii UNIVERSALJQINT CONNECTING- E2030.

Application tiled April it; 1922. Serlial No. 551,6?0.

T 0 all whom it may concern:

Be it known that I, EDWARD ROSENTHAL. a citizen of the United States, residin at Brooklyn, in the county of Kings and tete of New York, have invented certain new and useful Improvements in Universal-Joint Connecting Rods, of which the following is a specification. This invention relates to connecting rods of the type used between the piston head and crank shaft of a reciprocating engine, the main object being the provision of a univer- 5111 joint in designed to eliminate bending and shearing; stresses by permitting a slight angular movement when the pressure within the cylinder, causes a large momentary strain on the connecting rod.

Another object is the provision of en engine connection as described designed in such manner as to readily replace those which are being used at present.

' These and'other objects will become zip parent in the description below in which similar characters-of reference refer to likennmed parts in the drawing in which, Figure 1 indicates a fragmentary sectional view of an engine cylinder showin the piston head and the connecting rod in p ace.

Figure 2 is a transverse sectional view thrn the cylinder taken on line 2--2 of Figure 1.

Figure 3 is e partial sectional partial elevetional view showing the improved joint on an enlarged scale.

Figure 4 is a perspective view of the hell knuckle.

Describing the drawing in detail, the numere-l 10 indicates an ordinary type of cornbnstion engine cylinder the head ll of; which has a concave surface 12.

A piston head 13 slideble within the cylinder is provided with annular pecking rings 14 which prevent leakage past the pistons.

The usual type of piston has opposed lugs 16 provided with holes 17 which receive it wrist pin 18, the hitter being hollow thruout its length so as to form it path for lubrieating oil. A hardened metallic ball having {1, bushing therein, is mounted on said wrist pin and is freely moynhle iliiitilll. the hall 19 being placed on the wrist pin when the piston is in a dismantled position.

the piston head thereof and is The connecting rod 21 secures the piston to the crank sheit, giving a rotational motion he to the latter.

The upper end of said connecting rod 1.

n spherical socket "52 which is snrrno" by a rectnngnlnr flange Enid fien en" ages a similar flange for s. spherie r snrlaced socket cap 25. Said cap member when secured to the connecting rod hy hoits retains the hall 19 snugly their lint permitting the rotation of the tr any angular dir ctien,

The opposed ends or" ssid cap ing rod mernher are provided circ nler recesses 27, which form. an annular orince when both members are seemed to each other.

Uhviously, the engine is i iznctionii' side strains and stresses are produced whic tend to deform the connectingrod, wrist nin or other allied members. thus irnlncin ii condition which eventually lends '1 v. ment' owing to these rosin ports sprung.

These stresses ere eliminated by the joint in conji r tion with 27 which allows a slight angular connecting rod, in a plane zi llel longitudinal center line. of the vrri 't Another important feature, the with which replacement is ecci'ini-phsl Detechinethe old connecting rod and siin ping; the ell 19 on the wrist pin it 0;? the piston head 13 will allow the socket heeded connecting rod to be secured in piece.

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